Ds Freezes when turned on

So I have my DSTT card since yesterday (This oneNow, The games work fine and stuff, only my kirby game froze one time.But here's the real problem. I put the usb stick into my pc, put on the TTmenu stuff and some roms (a friend of mine explained how, he got one himself)Now, when I turn on my DS, most of the time it freezes. You can see the health warning, but it is barely readable (very bright) or it gives just a wide screen or it just freezes on the Loading Picture. Tried to reformat my card, no progress.Thing is. When I eject the hardware from my pc, it says that it is ejected, but I still see the "disc" (P:) Only, when I remove the usb, the disc disappears, so I think I just don't eject it the right way.Greets

You can safely remove it if you want, by clicking the little hardware icon when it is connected in your tray. Backup and reformat your MicroSD, and then blow on the MicroSD circuit and DSTT loader.

Yes, I remove it that way, but when I do, you still see the disk item. Also tried the other thing, no progress.. My friend coems around tomorrow with his, testing wheter it is the cardridge or my ds thats the problem

It's very unlikely that it's the DS. It's the MicroSD mostly.

I was thinking of that to.. Is it possible to send it back to the manufacturer and get a new one?

in my country it is possible to send it back, and trade it with the new one
as long we have they struck,

The kirby game will freeze for you no matter what. It happens to everyone, just restart the game.

That problem usually occurred after beating a mode, so yes restarting works.

Ait, well, we tried it on the ds from my friend, and the same problem occurs. So he is sending it back to the site we bougt it from (bigdennis.com) And thanks for the info on the kirby thing.

You're welcome.